Abstract
AbstractThe tan riffleshell (Epioblasma florentina walkeri) is listed by the US Fish and Wildlife Service as endangered, and is restricted to only 1 reproducing population in Indian Creek of the upper Clinch River, Virginia. We investigated its fish hosts, efficacy of infestation methods, suitability of host populations, and population demographics. Fish were collected and infested with tan riffleshell glochidia to examine potential hosts. Juveniles transformed on at least 5 of the tested species: fantail darter (Etheostoma flabellare), greenside darter (E. blennioides), redline darter (E. rufilineatum), snubnose darter (E. simoterum), and 1 or 2 cottids: banded sculpin (Cottus bairdi) or mottled sculpin (C. carolinae). Fantail darters from 4 drainages were collected and infested with glochidia to compare the suitability of various populations of the most successful host. The number of juvenile mussels obtained from fantail darters collected from Indian Creek (x ± 1 SD = 59.22 ± 10.01) was significantly ...
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